From patchwork Mon Jan 21 01:56:52 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Chen X-Patchwork-Id: 2009111 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id 4DEDB3FD86 for ; Mon, 21 Jan 2013 02:00:09 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Tx6dw-0004fo-Kr; Mon, 21 Jan 2013 01:57:48 +0000 Received: from ch1ehsobe003.messaging.microsoft.com ([216.32.181.183] helo=ch1outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1Tx6di-0004cU-0m for linux-arm-kernel@lists.infradead.org; Mon, 21 Jan 2013 01:57:34 +0000 Received: from mail8-ch1-R.bigfish.com (10.43.68.227) by CH1EHSOBE016.bigfish.com (10.43.70.66) with Microsoft SMTP Server id 14.1.225.23; Mon, 21 Jan 2013 01:57:32 +0000 Received: from mail8-ch1 (localhost [127.0.0.1]) by mail8-ch1-R.bigfish.com (Postfix) with ESMTP id CBAEF2402ED; Mon, 21 Jan 2013 01:57:31 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 1 X-BigFish: VS1(z551bizzz1ee6h1de0h1202h1e76h1d1ah1d2ahzz8275bhz2dh2a8h668h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h1354h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h1155h) Received: from mail8-ch1 (localhost.localdomain [127.0.0.1]) by mail8-ch1 (MessageSwitch) id 1358733449864092_6773; Mon, 21 Jan 2013 01:57:29 +0000 (UTC) Received: from CH1EHSMHS012.bigfish.com (snatpool2.int.messaging.microsoft.com [10.43.68.233]) by mail8-ch1.bigfish.com (Postfix) with ESMTP id CEDC110005E; Mon, 21 Jan 2013 01:57:29 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CH1EHSMHS012.bigfish.com (10.43.70.12) with Microsoft SMTP Server (TLS) id 14.1.225.23; Mon, 21 Jan 2013 01:57:25 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-003.039d.mgd.msft.net (10.84.1.16) with Microsoft SMTP Server (TLS) id 14.2.318.3; Mon, 21 Jan 2013 01:57:25 +0000 Received: from localhost.localdomain (nchen-desktop.ap.freescale.net [10.192.242.40]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id r0L1ux6M009451; Sun, 20 Jan 2013 18:57:17 -0700 From: Peter Chen To: , Subject: [RESEND PATCH v5 1/7] Revert "USB: chipidea: add vbus detect for udc" Date: Mon, 21 Jan 2013 09:56:52 +0800 Message-ID: <1358733418-17969-2-git-send-email-peter.chen@freescale.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1358733418-17969-1-git-send-email-peter.chen@freescale.com> References: <1358733418-17969-1-git-send-email-peter.chen@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130120_205734_106397_37FDA85E X-CRM114-Status: GOOD ( 12.46 ) X-Spam-Score: 0.4 (/) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (0.4 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [216.32.181.183 listed in list.dnswl.org] 3.0 KHOP_BIG_TO_CC Sent to 10+ recipients instaed of Bcc or a list -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: marex@denx.de, m.grzeschik@pengutronix.de, matt@genesi-usa.com, linux-usb@vger.kernel.org, balbi@ti.com, mkl@pengutronix.de, kernel@pengutronix.de, gregkh@linuxfoundation.org, maxime.ripard@free-electrons.com, shawn.guo@linaro.org, festevam@gmail.com, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org vbus register is at otgsc, and vbus detect does not belong to device function. Revert this patch, and will move vbus detect function to drivers/usb/chipidea/udc.c This reverts commit 8c4fc031954b4eb72daf13d3c907a985a3eee208. Signed-off-by: Peter Chen --- drivers/usb/chipidea/ci.h | 1 - drivers/usb/chipidea/udc.c | 39 +-------------------------------------- 2 files changed, 1 insertions(+), 39 deletions(-) diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index e25d126..d738603 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -139,7 +139,6 @@ struct ci13xxx { enum ci_role role; bool is_otg; struct work_struct work; - struct work_struct vbus_work; struct workqueue_struct *wq; struct dma_pool *qh_pool; diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 2f45bba..d214448 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -305,18 +305,6 @@ static u32 hw_test_and_clear_intr_active(struct ci13xxx *ci) return reg; } -static void hw_enable_vbus_intr(struct ci13xxx *ci) -{ - hw_write(ci, OP_OTGSC, OTGSC_AVVIS, OTGSC_AVVIS); - hw_write(ci, OP_OTGSC, OTGSC_AVVIE, OTGSC_AVVIE); - queue_work(ci->wq, &ci->vbus_work); -} - -static void hw_disable_vbus_intr(struct ci13xxx *ci) -{ - hw_write(ci, OP_OTGSC, OTGSC_AVVIE, 0); -} - /** * hw_test_and_clear_setup_guard: test & clear setup guard (execute without * interruption) @@ -383,16 +371,6 @@ static int hw_usb_reset(struct ci13xxx *ci) return 0; } -static void vbus_work(struct work_struct *work) -{ - struct ci13xxx *ci = container_of(work, struct ci13xxx, vbus_work); - - if (hw_read(ci, OP_OTGSC, OTGSC_AVV)) - usb_gadget_vbus_connect(&ci->gadget); - else - usb_gadget_vbus_disconnect(&ci->gadget); -} - /****************************************************************************** * UTIL block *****************************************************************************/ @@ -1392,7 +1370,6 @@ static int ci13xxx_vbus_session(struct usb_gadget *_gadget, int is_active) if (is_active) { pm_runtime_get_sync(&_gadget->dev); hw_device_reset(ci, USBMODE_CM_DC); - hw_enable_vbus_intr(ci); hw_device_state(ci, ci->ep0out->qh.dma); } else { hw_device_state(ci, 0); @@ -1567,10 +1544,8 @@ static int ci13xxx_start(struct usb_gadget *gadget, pm_runtime_get_sync(&ci->gadget.dev); if (ci->platdata->flags & CI13XXX_PULLUP_ON_VBUS) { if (ci->vbus_active) { - if (ci->platdata->flags & CI13XXX_REGS_SHARED) { + if (ci->platdata->flags & CI13XXX_REGS_SHARED) hw_device_reset(ci, USBMODE_CM_DC); - hw_enable_vbus_intr(ci); - } } else { pm_runtime_put_sync(&ci->gadget.dev); goto done; @@ -1676,13 +1651,6 @@ static irqreturn_t udc_irq(struct ci13xxx *ci) } else { retval = IRQ_NONE; } - - intr = hw_read(ci, OP_OTGSC, ~0); - hw_write(ci, OP_OTGSC, ~0, intr); - - if (intr & (OTGSC_AVVIE & OTGSC_AVVIS)) - queue_work(ci->wq, &ci->vbus_work); - spin_unlock(&ci->lock); return retval; @@ -1758,7 +1726,6 @@ static int udc_start(struct ci13xxx *ci) retval = hw_device_reset(ci, USBMODE_CM_DC); if (retval) goto put_transceiver; - hw_enable_vbus_intr(ci); } retval = device_register(&ci->gadget.dev); @@ -1821,9 +1788,6 @@ static void udc_stop(struct ci13xxx *ci) if (ci == NULL) return; - hw_disable_vbus_intr(ci); - cancel_work_sync(&ci->vbus_work); - usb_del_gadget_udc(&ci->gadget); destroy_eps(ci); @@ -1864,7 +1828,6 @@ int ci_hdrc_gadget_init(struct ci13xxx *ci) rdrv->irq = udc_irq; rdrv->name = "gadget"; ci->roles[CI_ROLE_GADGET] = rdrv; - INIT_WORK(&ci->vbus_work, vbus_work); return 0; }